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. 2011 Aug;8(8):3287-98.
doi: 10.3390/ijerph8083287. Epub 2011 Aug 11.

Perceived Stress Scale: reliability and validity study in Greece

Eleni Andreou  1 , Evangelos C Alexopoulos, Christos Lionis, Liza Varvogli, Charalambos Gnardellis, George P Chrousos, Christina Darviri
Affiliations

Perceived Stress Scale: reliability and validity study in Greece

Eleni Andreou et al. Int J Environ Res Public Health. 2011 Aug.

Abstract

Objective: To translate the Perceived Stress Scale (versions PSS-4, -10 and -14) and to assess its psychometric properties in a sample of general Greek population.

Methods: 941 individuals completed anonymously questionnaires comprising of PSS, the Depression Anxiety and Stress scale (DASS-21 version), and a list of stress-related symptoms. Psychometric properties of PSS were investigated by confirmatory factor analysis (construct validity), Cronbach's alpha (reliability), and by investigating relations with the DASS-21 scores and the number of symptoms, across individuals' characteristics. The two-factor structure of PSS-10 and PSS-14 was confirmed in our analysis. We found satisfactory Cronbach's alpha values (0.82 for the full scale) for PSS-14 and PSS-10 and marginal satisfactory values for PSS-4 (0.69). PSS score exhibited high correlation coefficients with DASS-21 subscales scores, meaning stress (r = 0.64), depression (r = 0.61), and anxiety (r = 0.54). Women reported significantly more stress compared to men and divorced or widows compared to married or singled only. A strong significant (p < 0.001) positive correlation between the stress score and the number of self-reported symptoms was also noted.

Conclusions: The Greek versions of the PSS-14 and PSS-10 exhibited satisfactory psychometric properties and their use for research and health care practice is warranted.

Keywords: Greece; Perceived Stress Scale; psychometric properties; translation; validation.

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